Invertebrate Vocabulary

An invertebrate is

• abdomen
• antennae
• arachnids
• bivalves
• carapace
• cephalothorax
• chitin
• choanocytes
• closed circulatory system
• coeloms
• exoskeleton
• gills
• hemocoels
• insects
• larvae
• mantle
• medusa
• mesoglea
• molting
• mucus
• muscular foot
• polyp
• pores
• pseudocoelom
• tentacles
• thorax
• trachea
• valves
• visceral mass